Nils heneik waidotger



July 5, 1932. N. H. WALDINGER MATCH Filed Oct. 14, 1930 Patented July 5, 1932 STATES NILS HENRIK WALDINGER, OF JONKOPING, SWEDEN- MATCH Application filed October 14, 1930, Serial No.

In the manufacture of strips of matches, consisting of a number of matches formed integral with a common base strip, it is wellknown to weaken the matches at their bases by means of perforations in order to make it easy to tear off the matches from the base strip. Such perforations have hitherto been made in the shape of incisions or punched cuts in the lateral edges of the matches at the places, where the matches cohere with the base strip, so that the matches will remain connected with the base strip only by a central portion of material having a width so much narrower than that of the remainder of the match that the match may be torn off from the base strip with the facility required. The remaining central portion of the match having a low moment of resistance, the stability of the individual matches 20 is, however, in this case unsatisfactory so that the matches easily assume incorrect positions at the tipping operation and also in the cover, in which one or more strips of matches are generally wrapped. The chief object of this invention is to provide a strip of matches having a perforation of such character that the matches though weakened to the same extent as those mentioned above, are kept in the correct position. The invention consists in this that the perforation is made between the lateral edges of each match said lateral edges thus remaining uncut. This construction involves the advantage that the matches show a greater resistance to bending action in the lateral direction and to twisting action around their centre line than in the construction heretofore known, in which each match is connected with the base strip at one place only. If two equal matches are weakened by punching out half of the width of the material in one case in the centre of the match and in the other case at the edges of the match, the moment of resistance to bending strain in the lateral direction is in the first case seven times greater than that in the second case. This is of great importance at the tipping operation, because it is then desired to prevent the matches from bending towards 488,658, and in Sweden September 23, 1930.

each other in such manner, that coherent heads are formed.

In the annexed drawing some embodiments of the invention are shown.

Referring now to Fig. 1 of the drawing, which shows a strip of matches made in accordance with the invention, 2 indicates a number of matches made integral with a common base strip 1. At their bases the matches are weakened by cuts or incisions 3 perforating the central portion of the matches but leaving the edges of the matches unweakened. In order to prevent certainly that also the bases or roots of adjacent matches are damaged, when a match is torn off, the cuts 3 are not made exactly in the base line of the matches but somewhat above the same. As is evident from Figs. 1 and 2, the cut 3 is made by a sharp edge in such a manner that no material is removed from the match.

Instead of the simple cuts shown in Figs. 1 and 2, holes of any suitable shape may be punched into the matches so that some material. is removed. Figs. 3, 4 and 5 show an embodiment having rectangular holes 3 punched into the matches 2, and Figs. 6 and 7 show another embodiment having circular holes 3. In all of these Figs. 8-7, the perforations are also made somewhat above the base line of the matches 2.

The invention is also applicable to strips of matches in which the matches are not placed immediately adjacent to each other but are separated by certain spaces, for instance, of the same width as the matches. In this case the perforations may be placed exactly in the base line of the matches without any inconvenience, as shown in Fig. 8 illustrating this embodiment.

What I claim is 1. In a strip of matches cohering with each other at their bases only, a number of matches, a common base strip formed integral with said matches, and perforations at the bases of said matches in the central portions thereof leaving the lateral edges of said matches uncut.

2. In a strip of matches cohering with each other at their bases only, a number of matches, a common base strip formed integral with said matches, and at the bases of said matches at a distance from said base strip perforations in the central portions of said matches leaving the lateral edges of said matches uncut.

3. In a strip of matches cohering with each other at their bases only, a row of matches, a common base strip formed integral with said matches, and perforations at the bases of said matches in the central portion thereof leaving the lateral edges of said matches uncut, said perforations being made by punching away some material at the centre line of the matches.

In testimony whereof I have signed my name.

NILS HENBIK VVALDINGER. 

